Finding the Fourth Proportional to 96,823.15, 133,561.99 and 89,973.09
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Solution
The fourth proportional to 96,823.15, 133,561.99 and 89,973.09 is: 124,112.72
Step by Step Solution
- Step 1: Write the proportion equation
96,823.15 : 133,561.99 = 89,973.09 : x - Step 2: Convert to fraction form
96,823.15/133,561.99 = 89,973.09/x - Step 3: Cross multiply
96,823.15x = 133,561.99 × 89,973.09 - Step 4: Simplify right side
96,823.15x = 12,016,984,946.85 - Step 5: Solve for x
x = 12,016,984,946.85/96,823.15 - Step 6: Final answer
x = 124,112.72
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.